<template>
    Hello, {name}! <br>
    <template lwc:if={urlParam}>
        UrlParam: <span style="color: blue;">{urlParam}</span>
    </template>
    <template if:false={name}>
        <lightning-button onclick={openLwc} label="打开LWC，并传参"></lightning-button>
    </template>
</template>